a. What is the probability that an electron will tunnel through a 0.50 nm air gap from
Question:
a. What is the probability that an electron will tunnel through a 0.50 nm air gap from a metal to a STM probe if the work function is 4.0 eV?
b. The probe passes over an atom that is 0.050 nm “tall.” By what factor does the tunneling current increase?
c. If a 10% current change is reliably detectable, what is the smallest height change the STM can detect?
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Visualize Solve a The work function E 0 40 eV is the energy barrier U 0 E that an electron must eith...View the full answer
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Related Book For 
Physics for Scientists and Engineers A Strategic Approach with Modern Physics
ISBN: 978-0133942651
4th edition
Authors: Randall D. Knight
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